Combining XFEM and time integration by α-method for seismic analysis of dam-foundation-reservoir

•A numerical solution using the XFEM and time integration by α-method are coupled to study the 2D dynamic fracture of dam-foundation-reservoir problem.•The proposed method can improve the computation efficiency and avoid numerical instability.•Obtained results show by increasing the value of α in ti...

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Veröffentlicht in:	Theoretical and applied fracture mechanics 2020-10, Vol.109, p.102752, Article 102752
Hauptverfasser:	Haghani, M., Navayi Neya, B., Ahmadi, M.T., Vaseghi Amiri, J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Concrete dams Crack propagation Crack tips Dam-foundation-reservoir interaction Damping ratio Dynamic crack propagation Dynamic stress intensity factors (DSIFs) Energy dissipation Engineering Engineering, Mechanical Extended finite element method (XFEM) Finite element method Gravity dams Gravity foundations Integrals Mechanics Reservoirs Science & Technology Seismic analysis Seismic stability Shock waves Stress intensity factors Technology Time integration α-Method
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